fix: silent refresh errors on active connection #219
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When an instance already have active connections, it should not throw errors when trying to refresh cloud instance certificates in the background. Otherwise these errors will bubble up and stop the end user application. This changeset fixes it by adding a more resilient system to the CloudSQLInstance refresh logic that silents errors occured during refresh and keeps valid certificate data that can be used if a refresh is still ongoing or if any error happens when during a refresh. Fixes: #201
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jackwotherspoon
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@ruyadorno Let's try and keep naming consistent across languages where we can. This will help the long-term maintenance burden and allow future maintainers to ramp up on the code base a lot quicker. |
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src/cloud-sql-instance.ts
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| // refresh errors to the final user, scheduling a new refresh instead. | ||
| if (this.stablishedConnection) { | ||
| if (currentRefreshId === this.scheduledRefreshID) { | ||
| this.scheduleRefresh(); |
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What happens to caller here? Do we block them until a new refresh is done? What happens if the refresh continues to fail? Do we block the event loop?
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No, we never block the event loop. What happens is that the current metadata value is still used for connections in that case.
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Co-authored-by: Jack Wotherspoon <jackwoth@google.com>
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When an instance already have active connections, it should not throw errors when trying to refresh cloud instance certificates in the background. Otherwise these errors will bubble up and stop the end user application.
This PR fixes it by adding a more resilient system to the CloudSQLInstance refresh logic that silents errors occured during refresh and keeps valid certificate data that can be used if a refresh is still ongoing or if any error happens when during a refresh.
Fixes: #201